Răspuns:
[tex]S=(2,-4)[/tex]
Explicație pas cu pas:
[tex]\left \{ {{3x+2y=-2} \atop {x-y=6 | *2} \right.[/tex]
[tex]\left \{ {{3x+2y=-2} \atop {2x-2y=12}} \right.[/tex]
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[tex]5x = 10 |:5\\x=2[/tex]
[tex]2-y=6\\-y=4 => y=-4[/tex]